The boyfriend of actress Becca Tobin, who plays Kitty Wilde on the Fox TV series, was found dead Thursday in a hotel room in Philadelphia, according to police, and the cause is still a mystery.

Update: The city medical examiner's office said Friday an autopsy failed to determine how Matt Bendik, 31, died, the Associated Press reported. More studies will be done to try to determine both the cause and manner of death.

Police were called to the Hotel Monaco on Thursday afternoon and soon pronounced 31-year-old Matt Bendik dead.

Tobin's manager, Ricky Rollins of Schumacher Management, says that "with respect to both the Bendik and Tobin families, there is no comment at this time."

Glee star Cory Monteith died of an accidental alcohol and drug overdose in a Canadian hotel last July. Tobin joined the Glee cast in 2012.

Matt Bendik and Tobin were in town for business. They went out afterwards and then returned to their hotel. A maid found his body Thursday afternoon.

Her most recent Instagram post, from July 10, was about a shoe giveaway from ethical brand Sseko Designs. But back in June, she posted a sweet photo of her smooching Bendik on the cheek.